Hennes Mamma
type: MusicGroup
popularity: 3
followers: 22
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3d726b2abe7fe8c009063cdfc16046e05fc1e66d1bbb7a385d7cc422c07d0616
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a9997d5c-5473-4814-8ef5-daac902efa16.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a9997d5c-5473-4814-8ef5-daac902efa16.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a9997d5c-5473-4814-8ef5-daac902efa16
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3d726b2abe7fe8c009063cdfc16046e05fc1e66d1bbb7a385d7cc422c07d0616","name":"Hennes Mamma","registered_at":"2026-06-20T09:04:04Z","symbol":"NIM1573290","token_address":"0xd130af6167829b53d9645e6f3300c2168bd7f3dd","type":"artist","uuid":"a9997d5c-5473-4814-8ef5-daac902efa16"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d726b2abe7fe8c009063cdfc16046e05fc1e66d1bbb7a385d7cc422c07d0616. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a9997d5c-5473-4814-8ef5-daac902efa16.json and https://artists.proofprofile.net/proofs/artist/a9997d5c-5473-4814-8ef5-daac902efa16.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0x3d726b2abe7fe8c009063cdfc16046e05fc1e66d1bbb7a385d7cc422c07d0616","name":"Hennes Mamma","registered_at":"2026-06-20T09:04:04Z","symbol":"NIM1573290","token_address":"0xd130af6167829b53d9645e6f3300c2168bd7f3dd","type":"artist","uuid":"a9997d5c-5473-4814-8ef5-daac902efa16"}
album: Vems mamma?
  type: MusicAlbum
  date published: 2025-07-04